Method of treating charcoal



H. J. HABER.

METHOD OF TREATING CHARCOAL.

APPUCATION FILED APR. 18. I918.

1 4015 3 1 Patented Feb. 21, 1922.

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Application filed April 18,

To'aZl'whomz't may concern:

Be it knownthat I, HENRY J. Fianna-a citizen of the United' States, residing at Cleveland, in'the county of Cuyahoga and Stateof Ohio, haveinvented certain new and useful Improvement in Methods" of Treating Charcoal, of Whiclifthe following is a full, clear, andexact description.

It is the purpose and object of this invention to provide a method by'which charcoal subsequent to its being charred may be quenched, and a smoldering combustion stopped, or where the charcoal-is to form the basis of what is known in the trade as heat treating compounds to impregnate the charcoal with a solution carrying suitable chemical substances which may be desirable to associate with the charcoal for the purpose.

Reference may be had to the accompanying drawings forming a part of this specification, in which the figure represents in sectional elevation an apparatus in which the method herein disclosed may be carried out.

The method starts with a heated mass of charcoal either where the mass of charcoal is directly delivered from a charring furnace, or where the charcoal has been heated prior to using my method. And preferably the charcoal utilized in carrying out my invention is in pieces of small size which in the case of impregnating charcoal directly with chemical substances in making heat treating compound is approximately the size of a pea or bean, known in the trade as No. 4; charcoal.

The charcoal in heated condition is delivered through a tubular member 1. into the interior of a receptacle 2. The end opening of the tubular member 1 is substantially closed by means of a swinging door 3, this door being so mounted as to hang inclosed position by gravity. As the charcoal mass is forced slowly through the tubular memher 1 the door 3 is deflected from its vertical f; -iirnriron or TREATING erraacoen fitefific of was atent. Patented Feb. 21 192a.

191a. Serial No. 229,463. i

or container -2,-'it is contacted by aspray of water,in which there is dissolved or in WlilCll' there 1s-1n suspension in finely didesiredto impregnate the charcoal.

The solution justmentioned"isl delivered vided form the chemical substances with which it is i i to the interior of the receptacle through a piped having a suitable nozzle 5.

As the charcoal is in heated condition, the pores of the charcoal are filled with air 1n expanded condition, and upon being contacted by the cold solution carrying the.

chemical substances, the air in the pores contracts, thereby causing a much more efiic1ent taking up of the solution with its chemicals than could be effected by treatment of cold charcoal, either by a spray or by a soaking process.

The charcoal as it falls after entering the receptacle 2, is constantly receiving treatment by the solution in spray form contacting with it, and when the charcoal has fallen to the bottom of the receptacle 2, it is slowly removed therefrom by means of a screw conveyor which is indicated at 6.

At the lower end of the receptacle 2 there is a pipe 7 which is a drain pipe and serves to conduct away the excess solution which has not been taken up by the charcoal.

The charcoal is slowly removed from the receptacle 2, so as to afford ample time for the solution containing the chemical to come in contact with all the particles of charcoal.

Naturally in the; process the solution striking the charcoal causes the evaporation, at least in part, of the water, which evaporation forms clouds of condensed moisture which may be allowed to pass ofi from the receptacle by means of the vent opening 8 at the upper part of the receptacle 2.

When the charcoal emerges from the receptacle 2 it has usually been sufliciently quenched below the temperature at which combustion may take place.

It will be quite obvious from the foregoing description that if the charcoal be desired for other purposes than that of making heat treating compounds, that instead of supplying water having a solution or suspension chemical substances, clear water may be supplied free from chemicals. Charcoal delivered 0 the chamber 2,

quenched and cooled in the manner which has been described is removedand handled ceptacle 2 subsequent to the treatment with r consists in supplying charcoal in heated condition to:a' closed receptacle, bringing said my process n a manner to be suitable for producing heat treating compound is allowed to stand so that the moisture may evaporate therefrom, and the chemical sub stances are. deposited in the pores of and Having described myinve-ntion, I claim:

The method of continuously quenching charcoal which consists in supplying charcoal in heated condition to a closed receptacle,;spraying thecharcoal with a cooling solution, and continuously removing the charcoal fromgthe lower portion of the receptacle after treatment.

2..The method of continuously quenching charcoal which consists of supplying ceptacle continuously IilOViHg the charcoal through the closed receptaclefand. spraying the charcoal with a'cool-ing solution 3.] The method of treating charcoal which charcoal into contact While in heated condition with a fluid carrying desired chemical substances and removing the charcoal from the receptacle.

4. The methodof treating charcoal'n hich consists in supplying charcoal in heated conditionto a closed receptacle, spraying'the charcoal with a fluid containing suitable chemical substances and removing the charcoal from the receptacle. Y

In testimony whereof, I hereunto affix my signature. :7

HENRY J. Hanna 

